Curlycup Gumweed (Grindelia squarrosa) By Teresa Prendusi. The grindelias, members of the sunflower family (Asteraceae), are most commonly known for their copious amount of gummy resin (exudates) found on their flower heads. Several subspecies are found west of the Mississippi river.

Curlycup gumweed has alternating, bright green leaves. It produces bright, yellow flowers. Leaves and flower heads have many glands (secretory organs), which secrete a gummy substance, hence the name “gumweed.” Native to North America and commonly found on …

Grindelia squarrosa, also known as a curly-top gumweed or curlycup gumweed, is a small North American biennial or short-lived perennial plant. [2] G. squarrosa is a decumbent to erect, much-branched perennial herb or subshrub growing up to 100 centimetres (39⁄ inches) tall.

CURLYCUP GUMWEED. Grindelia squarrosa (Pursh) Dunal. Plant Symbol = GRSQ. Common Names: Tarweed; resinweed; rosinweed . Scientific Names: None. Description. General: Composite family (Asteraceae). Curlycup gumweed is a short-lived perennial, or biennial forb averaging 1 to 3 feet high. Numerous branching stems bear alternately arranged

2024年9月30日 · Grindelia squarrosa, known as curlycup gumweed, is a biennial or short-lived perennial native to North America. Its distinctive sticky resin and bright yellow flowers make it a visually appealing addition to native plant gardens.

2018年9月24日 · Curlycup Gumweed (Grindelia) is a warm-season biennial or short-lived herbaceous, perennial plant that grows about maximum height of 90 cm (appx. 3 ft.). The plant is found growing in dry prairies, waste places, roadsides, railroads, depleted rangelands, and abandoned croplands.

Curlycup Gumweed, Grindelia squarrosa brightly colored flowers and plants are heavily visited by butterflies, moths and other insects in search of food, nectar or cover.

Curlycup gumweed may concentrate the mineral selenium to levels that can be toxic to cattle, although they generally avoid eating the plant. Poorly managed grazing favors gumweed. Chemical: Try broadleaf-selective herbicides such as 2,4-D and dicamba on young plants.

Description: This herbaceous plant is usually a biennial (rarely a short-lived perennial) that forms a low rosette of basal leaves during the first year. During the second year, one or more flowering leafy stems develop from the root system; they are ¾–3' tall.

We observed gumweed at Blue Mounds (rock county) and Camden (Lyon county). Our book lists it as gumweed but I notice some books call it curly cup gumweed. There is also a pasture two miles from where I live in Brown county that is loaded with gumweed.